This natural sea arch highlights Ireland's rugged coastal beauty.

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

This ancient Irish landscape boasts hundreds of legendary ruins.

Just another ancient, mysterious Irish stone circle.

Certain traditions prevail on the least-visited island of the Aran Islands.

The world's tallest box hedge is found in a delightful garden.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

Wallabies live naturally on this Irish island.

This 30-foot pile of rocks may be the grave of a mythological Irish queen.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

Huge standing stones mark a site of megalithic mystery.

The home of Ireland's last leprechauns is officially protected by the European Union.

Wander among the abandoned ruins of this once-powerful medieval town.

This single room has survived the centuries with almost no deterioration.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

After being destroyed by IRA sympathizers, the ruins of this stately Irish manor have sat vacant for decades.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

There might not be much left of these Irish ruins, but their linguistic legacy is still going strong.

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.